/**
 * Copyright (c) 2016 SQLines
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#ifndef HIGHLIGHTER_H
#define HIGHLIGHTER_H

#include <QSyntaxHighlighter>

#include <QHash>
#include <QTextCharFormat>

class QTextDocument;

class Highlighter : public QSyntaxHighlighter
{
    Q_OBJECT

 public:
     Highlighter(QTextDocument *parent = 0);

 protected:
     void highlightBlock(const QString &text);

 private:
     struct HighlightingRule
     {
         QRegExp pattern;
         QTextCharFormat format;
     };
     QVector<HighlightingRule> highlightingRules;

     QRegExp commentStartExpression;
     QRegExp commentEndExpression;

     QTextCharFormat keywordFormat;
     QTextCharFormat numberFormat;
     QTextCharFormat singleLineCommentFormat;
     QTextCharFormat singleLineCommentFormat2;
     QTextCharFormat multiLineCommentFormat;
     QTextCharFormat quotationFormat;
     QTextCharFormat singleQuotationFormat;
};

#endif // HIGHLIGHTER_H
